Hopper for feeding two-pronged rivets.



A. H. HAVENER.

HUPPER FR FEEDING TWO-PRONGED RIVETS.

APPLlCATioN FILED FLB. 15.1915.

.Patented Apr. 18, 1916.

2 SHEETS-SHEET l.

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A. R. HAVENEB. HOPPER FOR FEEDING TWO-PRONGED RIVETS.

APPLICATION FILED FEB. l5. |915.

,Patented Apr. 18, 1916.

, .2 SHEETS-SHEET 2- .f /7 /b l mmv 'itt

ARTHUR n. Havanna, or wALrHait, Massacrrusnrms, iissicrnoi?u To .rUDsoN L. 'rHoiviSoN Mre co., A 'CORPORATION 0F MASSACHUSETTS. f

titanic.'

To all whom t may concern:

4 Be it known that l, ARTHUR R.

a'lcitizen ofthe United States, residing at Waltham, in the county of Middlesex and y'5 State of Massachusetts, have invented new one by one froma mass of said rivets to a raceway.4 A A The invention c'c'nsists in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the claims: l Referring to the drawings: Figure 1.1s a plan view yof my'improved hopper. Fig. 2t isa-side elevation, partly broken away and shown in section. The hopper when in use yis inclined on the line a--a. Fig. 3 is a sectional elevation taken on line 3--3of Fig. 1 and broken la'way to save space in the drav'vings.l 4 is a sectional plan taken on line 4-4 of Fig. 2 and broken away to Asave space in the drawings. Fig. 'isa detail section'taken on line 5 5 of Fig. 4. Fig. 6I is a sectional plan taken on line 6 6 of Fig. 3. Figs. 7 and 8 are` detail i 'sectional plans taken on line 4-4' of Fig. 2

l illustrating. the differentpositions of a rivet as yit is fed to the raceway. Fig. 9 is a sectional-elevation-taken on line 9--9 of Fig. 1f.

1inev10-10 of Fig. 4. Fig. l11 is a` detail isection taken on line 1111 of Fig. 7 Fig. 12 is a detail section similar to Fig. 5 of a modified forni of hopper'casing. q

out the several views of the'drawings.'

ln the drawings, 15k is the hopper con#A way 21. The bbtt'om ofthe hopfperl is in An an? clined downwardly'from said shel nular ange 22 extends part way around the inner face of the 'wall 18, there being a at space 23,!constiti1ting a slot, between said speciaeanon of Lettersrateni.

HAVENEB,

connection with feeding two-pronged rivets v Fig. 10 is a sectional elevation taken on Like numerals refer to like parts' through-v anda conical shaped bottom 19. At the norrniiroii Famine Two-rammen Rivers Patenten am. is, wie.

Application led February15, 1915.v SerialNo. 8,162.

annular llange and the shelf 2O into which a portion of the'head of a rivet 24 may pro' ject, as illustratedin Fig. 5. Said annular flange yterminates at one endthereof at-25',

. as seen in Fig. 1, and at the opposite end it .terminates at 26.-', It will be seen that the inner edge 27 of said annular flange 22 performs the function of guiding the ,legs of the rivet and as said flange is rigidly fastened to or may be made integralr with said wall it will be evident that' the inner edge of said flange constitutes, in A-e'ect, a por- -tion of the linner face of the wall of said casing.1 The raceway'2l'consists of a bot-- tom plate 28, two side walls 29 and two cover flanges 30 which are separated by a slot 31. `It will be seen,l that the bottom of the raceway 21 -forms a continuation of and is substantially flush with the -top of the slielf20. A slot 42 is provided at the bottom of the wall 18 on the opposite sideof the raceway frointhat which intersects the flange 1.22,'the bottom of'said slot 42 forming a 'portion ofthe shelf 20 where it eX- tends beyond the raceway v21. The slot 42 is substantially of the same height as the slot 23 and serves the saine function, namely, to

form a lspace to receive a portion of the [UNITED STATES-PATENT oFFicE.

heads ofthe rivets-asv they lie'on the shelf` 20 preparatory to passing down the' raceway 21.

the raceway is inclosed within a chamber 32 flanges of said raceway, while the prongs project from said chamber through the slot 31. The vraceway 21 extends through the cy- The head'of the rivet as it passes down lformed by the bottom, side walls and cover v lindrical ,wall 18,*entering` theA interior of the casing 16 at 33, land it will be noted that the end 26 of the annular flange 22 forms apart of one side of said raceway where the same leads out ofthe casing, said side wall 26 intersecting the edge 27 of the annular flange at an acuteangle, as illustrated in Figs. 4, 7 and 8.` The end' 26.0f said flange 22 which forms a ,portion ofone wall of the raceway 21 extends inwardly beyoiidr .the opposite wall of said raceway, as clearlyy seen 1n Fig. 4, so that the rivet may have room to ,turn its prongs 'and allow said prongs tomenter the slot 31 of said raceway. The shelf" 20 is made narrower adjacent to the entrance to said raceway, as illustrated kin Figs. 3 and 4,v so that any ofthe rivets which donot enter the raceway may fall back into the bottom of the hoppen .The rotary member 17 has a series of flexible lingers 34 fast thereto and projecting downwardly from said rotary member adjacent to the flange 22. These flexible fingers are preferably made of wire woundinthe form of spiral springs and act as a means to push the rivets along the shelf 20 and into the raceway 21. f Said member 17 is given a rotary movement by means of suitable gearing 35 .fast to a shaft 36 to which said rotary member 17 is rigidly fastened.

In order to release the rivets and allow them to slide downwardly into the raceway 21, the fingers 34 are arranged to engage a cam 37 (shown in Figs. 3 and 4), said cam commencing at 38 adjacent to the point where the raceway enters the casing 16 and` terminating at 39 (Fig. 4), v

While' it'is 'inore convenient, in the manufacture of the hopper, to vmake the flange 22 as shown in the drawings, it will be evident that without departing from the4 spirit ofmy invention said flange might be -continued to the top `of the casing, for it is the inner face of said flange which guides the prongs of the rivets and the flange forms a `cover over the'heads of the rivets where theyv project therebeneath to prevent from piling on top of another. In Fig. 12 I have illustrated such a modified form of my invention in which 43 is the casing wall, 44 the shelf, 45 the slot above the shelf and beneath the casing wall and 46 the vflange extending from the slot 45 to the Atop of the casing Wall 43. The flange'22 or the flange 46 may be made integral with the casing wall without .departing from the spirit of my invention, but it is preferable to have said flange made ina separate piece yon account of the ease of 'manufacturing the same.

The operation of the hopper hereinbefore specifically described is as follows: Said hopper is positioned when in use with the casing standing at an angle of 45, as illustrated by the broken line a--a of Fig. v2. Thus all ofthe parts are set at angles of 45to a vertical plane and the rivets will lie in .mass in the left hand side of the hopper as viewed in Figs. 1, 2, 3, and 4 of the drawings. A rotary motion is imparted to the member 17 and the flexible fingers 34 engage the rivets and move them along the -shelf 2O with' their heads resting Aon said eFig. 4, it will be seen, are prevented from passing down the raceway by the rivet 24 one rivet which is just about to pass the entrance to the raceway, but said rivet 24 upon conrivet 24 can pass around the corner of the flange 22 adjacent to the raceway and into said raceway. SaidI rivet will at such a time be partially rotated and assume substantially i the three ydifferent positions illustrated in Fig. 6. As 'soon ras the rivet 24 begins to slide down the `raceway the other rivets j which are located along the shelf on the opthe flange 22 will slide down the raceway following the rivet 24. Ags the lingers 34 pass the endof the racewayv they will encounter the cam 37 and will'bemoved inwardly toward the center of the hopper, thus disengaging the rivets which have been pushed along to the entrance to the raceway and allowing them to slide down said raceway, itbeingunderstood that the raceway extends at an angle of about`45 so that said rivets will slide down the raceway as soon as they are in alinement with it and released by said lingers.

Having thusdescribed my invention, what I claim and desire by Letters Patent to secure is: y

1. A hopper for feeding a two-pronged lposite side of the raceway from the end of rivet having, in combination, a casing with a cylindrical wall and a bottom comprising` a shelf extending at an angle to said wall and forming a support for a rivet head and acentral portion inclined at an angle to said shelf, a raceway leading out ofsaid casing at the bottom of said cylindrical wall, anv l annular flange extending partly around the inner face of said cylindrical wall at a dis- 4to engage said rivet. and push it along said casing and into said raceway,vwith a portion of its head beneathsaid flange and with one of said prongs resting against the inner edge of said flange. l

2. A hopper for feeding a two-pronged rivet having, in combination, a casing with a cylindrical wall and an inclined bottom, a raceway leading out of said casin-g at the bottom of said cylindrical Wall, an annular flange extending` partly around the inner face of said cylindrical wall at a distance from the bottom of said wall slightly greater than the depth of the head of said rivet, -the terminationv of said flange at one end thereof forming part of one side of said raceway where the same leadsout of said casing, means constructed and arranged to engage saidy rivet and push it along said casing, with a portion of its head beneath said flange and with one of said prongs resting against the `inner edge of said Hange and meansv adjacent to the entrance to said raceway constructed and arranged to move said lpushing means out` of engagement with said rivet.

3..A hopper for feeding a two-pronged rivet having, in combination, a casing with a cylindrical wall and a bottom, a shelf forming a part of said bottom at the base of said wall arranged at an angle thereto and 'forming a support for a rivet head,

' the bottom of said hopper being inclined i space between said flange and shelf into Iwhich a portion of the head of said rivet may project, the inner edge of saidflange,

downwardly from said shelf at any angle theretoan annular flange extending partly around the inner face of said wall, there being a space between said flange and shelf into which a portion of the head of said rivet may project, the inneredge of said flange constituting a guide for the prongs of said rivet, and a raceway leading out of said hopper, the bottom of said raceway being a continuation of the top of said shelf and one side of said raceway intersecting the inner edge of said flange,

4. A hopper for' feeding a two-pronged rivet having, in combination, a casing with a cylindricall wall and abottom, a shelf forming a part of said bottom at the base yof said wall arranged' atan angle thereto and forming a support for a rivet head, the bottom of said hopperbeing inclined down-` wardly from. said shelf at an angle thereto,

Van annular flange extending partly around the inner face of said wall, there being a constituting a guide for the prongs of said rivet, a raceway leading out ofisaid hopper, the bottom'ol said raceway being a continuation of the top of said shelf and one side of said raceway intersecting the inner edge of said flange, said shelf being eut away adjacent to the entrance to said raceway to .allow misplaced rivets to pass into the bottom of said lhopper and means constructed and arranged to push said rivet along said casing to the entrance to said raceway.

5. A hopper for feeding a two-pronged rivet having, in combination, acasing with a cylindrical wall and a bottom, a shelf forming a part of said bottom at the base of said wall arranged at an angle thereto and forming a support for a rivet head, the bottom of said hopper being inclined downwardly trom said shelf, an annular flange extending partly around the inner face of said lwall,

there beinga spacebetween said flange andshelf into which a portion of the head of i said rivet may project, thevinner edge of said la continuation of the top of said shelf and one side of said raeeway intersecting the inner edge of said llange, means .constructed and arranged tol push said rivet along said casing to the entrance to said raceway and a cam adjacent to the entrance to Vsaid raceway arranged to engage said pushing means and move the same inwardly on said hopper to disengage said rivet and allow it to slide down said raceway.

6. A hopper for feeding a two-pronged rivet having, in combination, 'a casing with a vcylindrical wall and a bottom, a shelf forming a part of said bottom at ,the base of said wall arranged at an angle thereto and forming a support for a rivet head, the bottom of said hopper being inclined downwardly from said shelf at an angle thereto, an annular flange extending partly around the inner face of said wall, there being 'a space between said flange and shelf into which a portion of the head of said rivet may project, the inner edge of said flange constituting a guide for the prongs of said rivet, and a raceway leading out of said hopper, the bottom of said raeeway being a continuation of the top of said shelf and one side of said raceway intersecting the inner edge of said flange, one end of said flange forming a part of one side of said raceway and projecting into said hopper beyond the opposite side of said raceway.

, 7. A hopper for feeding a two-pronged rivet having, in combination, a casing with a cylindrical wall and a bottom, a shelf forming a part of said bottom at the base of said wall arranged at an angle thereto an annular flange extending partly around' the inner face of said wall, there being `a space between said. flange andshelf into which aportion of the head of said rivet may project, the inner edge of said flange constituting a guide for the prongs of said rivet, a raceway leading out of said hopper, the bottomof said raceway being a continuation ofthe top of said shelf and one side of said raceway intersecting the inner edge of said flange, a rotary member located in said hopper and a series of laterally flexible fingers projecting downwardly from said rotary member adjacent to said flange, and means arranged to engage said tin-gers adjacent thel entrance to said raceway and push them inwardly toward the center of said -hopper to allow said `rivetsto slide into and down said raceway.

8. A hopper for feeding a-two-pronged rivet having, in combination, a casing with.v

istl

out of'said hopper, the bottom of Isaid raceway being a continuation of the top of said shelf and oneside of said raceway intersecting the inner edge of said flange, a rotary member located in said hopper, a series o laterally flexible fingers projecting downwardly from: said rotary member adjacent to said flange and a cam on said wall arranged to engage said fingers adjacent to the entrance to said raceway and push them inwardly toward the center offsaid hopper to allow said rivets to slide into and down said raceway. j

9. A hopper for feeding'rivets in an inverted position having, in combination, a casing with a cylindrical wall and an inclined bottom, a raceway leading out of said hopper at the bottom of said wall, there being a guide slot at the bottom of said wall and a shelf located partly beneath said slot and forming a support for the heads of said rivets, the bottom of said hopper being'inclined toward the center of said hopper at an angle tosaid shelf, the bottom of said raceway being substantially a continuation of the top offsaid shelf.

l0. A hopper for feeding rivets inan in-` verted position having, in combination, a casing withy a cylindrical wall andan 'inclined b'ottom, and a raceway leading out of flange, ying into a slot providedv at the bottom of wall on the opposite side of the entrance to said raceway. v

11. A hopper` `for feeding :a two-prongedv rivet having, in combination, a casing with a.

cylindrical Wall and'a'sbottom, a shelf forming a part of said bottom at the base of said f lwall arranged at an angle thereto and form- .ing a support for a rivet head, the bottom of said hopper being inclined downwardly from said shelf at an angle thereto, an `annular liange extending partly around the inner face of said wall, there being a space between said flange and shelf into which a portion of the head of saidF rivet may project, the inner edge of said flange constituting a guide for the prongsof said rivet, and a raceway leading out of said hopper, the

lbottom of said raceway being acontinuation of `the top` of said shelf and one side of 'said raceway intersecting the inner edge of said the other side of said raceway opensaid wall, said slot constructed and arranged to receive a portion of the head of said rivet. l l l In testimony whereof I have hereunto set my hand in presence of twor subscribing witnesses. s i

v ARTHUR R. HAYENER. Witnessesz .f.

CHARLES S; Goonnvc, I SYDNEY E. TAH. 

